| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 03/22/2000 | CN2370556Y Multifunction examining and repairing device for super high voltage isolated knife switch |
| 03/15/2000 | EP0713607B1 Fuse arrangement |
| 03/09/2000 | DE19831021C1 MV load breaker switch has switch blade cooperating with contact having current path extending in plane of initial contact surface |
| 03/02/2000 | WO2000011690A1 Switching device for connecting and disconnecting or connecting track sections to the ground in catenary systems |
| 03/01/2000 | EP0982748A1 Switch assembly and process for producing same |
| 03/01/2000 | CN2366964Y Microcomputer controlled anti-error operation interlocking for high-tension switch arrangement |
| 03/01/2000 | CN2366961Y Four poles knife switch |
| 03/01/2000 | CN1245964A Switching device and its manufacturing method |
| 02/24/2000 | WO2000010182A1 Step switch with selector |
| 02/24/2000 | DE19837945A1 Schaltanordnung und Verfahren zu ihrer Herstellung Circuitry and methods for their preparation |
| 02/24/2000 | CA2340262A1 Step switch with selector |
| 02/17/2000 | DE19849875C1 Locking device for 2-pole or 4-pole fused breaker switch only allows insertion of outer line fuse inserts or separation blades after insertion of fuse insert or separation blade for neutral line |
| 02/16/2000 | CN2364542Y Outdoor high-voltage AC double isolating pole circuit breaker |
| 02/16/2000 | CN1049523C Method for changing motor mechanism box body without power cut |
| 02/02/2000 | EP0883888B1 Fuse-switch and/or fuse-disconnector |
| 01/27/2000 | DE19933495A1 Electrical circuit breaker for use in automatic switching systems |
| 01/26/2000 | CN1242589A Interrupter for circuit breaker |
| 01/25/2000 | US6018134 Main circuit switching apparatus |
| 01/19/2000 | EP0973183A2 Isolating switch |
| 12/21/1999 | US6005213 Insulated type switchgear device |
| 12/09/1999 | DE19825386A1 Kapselungsbaustein mit einem kombinierten Trenn-Erdungs-Schalter für eine gasisolierte Schaltanlage Encapsulation with a combined separation earthing switch for a gas-insulated switchgear |
| 12/08/1999 | EP0962023A1 Grading ring insert assembly |
| 12/07/1999 | US5998748 Manually operated actuating device |
| 12/02/1999 | WO1999062154A1 Encapsulation module with a combined disconnecting-earthing switch for a gas-insulated switchgear |
| 12/01/1999 | CN2351823Y Isolating switch fuse unit |
| 12/01/1999 | CN2351822Y A/D isolating switch |
| 12/01/1999 | CN1047020C Disconnecting swith |
| 11/25/1999 | WO1999060590A1 Mean or high voltage interrupter device comprising a t-shaped circuit breaker mobile in rotation |
| 11/25/1999 | DE19823114A1 Mechanical interlock for an electrical power isolator |
| 11/25/1999 | DE19822877A1 Electric plug connection for substrate coating installations |
| 11/24/1999 | CN2350859Y Large current isolator |
| 11/17/1999 | CN2349659Y Three-interlocking vacuum loading switch |
| 11/16/1999 | US5986534 Dropout fuse having electrical energy absorbing device |
| 11/11/1999 | DE19816366C1 Kapselungsbaustein mit einem dreiphasigen Schaltgerät für eine gasisolierte Hochspannungsschaltanlage Encapsulation with a three-phase switching device for a gas-insulated switchgear |
| 11/10/1999 | CN1234594A Draw-out type high-current switch |
| 11/10/1999 | CN1046371C Load switch with safe |
| 11/04/1999 | WO1999056298A1 Housing for fused switch |
| 11/03/1999 | CN2347257Y Strengthening low voltage outdoor load switch |
| 10/27/1999 | CN2346062Y High-tension isolating switch |
| 10/26/1999 | US5973418 Pull-out high current switch |
| 10/21/1999 | WO1999053512A1 Burn-off contact arrangement |
| 10/21/1999 | DE19836463C1 Electric stepping switch for stepping transformer |
| 10/21/1999 | DE19816508A1 Abbrandschaltanordnung Consumable |
| 10/20/1999 | EP0951030A2 Electric contact with twin-knife insertion coupling, particularly for disconnectors, switches or the like. |
| 10/14/1999 | WO1999052186A1 Encapsulating module with a three-phase switching device for a gas-insulated high-voltage switching installation |
| 10/14/1999 | WO1999052119A1 Encapsulating module with a three-position switch integrated into a current path for a gas-insulated switchgear installation |
| 10/14/1999 | DE19816592A1 Drive units of three-position switches e.g. for power-supply and distribution, switching and control gear |
| 10/13/1999 | CN1231490A Three-position switch driving device for electricity supply and distributing switch equipment |
| 10/07/1999 | DE19814034A1 Transducer system with decoupling arrangement for continuous monitoring of high or medium voltage systems, e.g. switching systems |
| 10/06/1999 | EP0948011A2 Switch assembly for high-voltage electric power lines |
| 10/05/1999 | US5963411 Compact focused disconnect device |
| 09/30/1999 | WO1999049484A1 High voltage system having at least one device for optically detecting a parameter |
| 09/29/1999 | CN1230286A Vertical antitracking skirts |
| 09/29/1999 | CN1230285A Grading ring insert assembly |
| 09/15/1999 | EP0942448A2 Isolating switch with fuses |
| 09/15/1999 | CN1228881A Power switch installation with disconnecting functions |
| 09/14/1999 | US5952636 Vacuum type switch gear device having L shaped stationary and movable conductors arrangement |
| 09/09/1999 | DE19809162A1 Locking rod for securing a switch lock for power, load or isolation switches of electrical systems at voltages of up to 100 kV against unauthorized release |
| 09/08/1999 | CN1045033C Metal casing type gas insulation combined switch |
| 09/01/1999 | CN2336469Y High-tension isolating switch |
| 08/24/1999 | US5942723 Positive locking mechanism for in-line switch |
| 08/18/1999 | EP0936646A1 Medium or high voltage circuit breaker having an arc chamber with ameliorated dielectric strength |
| 08/18/1999 | CN2334107Y Interlocking high-voltage circuit breaker cabinet for fixed electric isolating switch |
| 08/11/1999 | EP0934598A1 Vertical antitracking skirts |
| 08/11/1999 | CA2260327A1 Medium or high voltage circuit breaker comprising an interrupter chamber with improved dielectric content |
| 08/10/1999 | US5936506 Delay mechanism for retarding relative movement between two members |
| 08/04/1999 | CN2332056Y Sheath-type DC. circuit breaker |
| 08/03/1999 | US5931694 Lever holding mechanism of service plug |
| 07/28/1999 | CN1224225A Fixing terminal and electrical connection module for plug-in circuit breaker |
| 07/22/1999 | DE19758357C1 High-voltage (HV) outdoor, compact switchbay arrangement |
| 07/08/1999 | DE19850430A1 Circuit breaker screening section |
| 06/30/1999 | EP0926793A1 Terminal for clamping and connector module for disconnectable circuit breaker |
| 06/30/1999 | EP0926692A2 Fuse-switch and/or fuse-disconnector |
| 06/29/1999 | US5915544 Breaker device |
| 06/23/1999 | EP0924736A2 Fuse-Switch and/or Fuse-Disconnector |
| 06/23/1999 | EP0924727A2 Fuse-switch and/or fuse disconnector |
| 05/26/1999 | EP0917752A1 Power switch installation with disconnecting functions |
| 04/21/1999 | CN1214525A Bellows and vacuum switch using the bellows |
| 04/15/1999 | WO1999018591A1 Vacuum switchgear |
| 04/15/1999 | WO1999000809A3 Low-voltage power switch with an actuating shaft |
| 04/08/1999 | WO1999017412A1 Switch gear |
| 04/07/1999 | EP0907193A2 Tap changer |
| 04/04/1999 | CA2249520A1 Tap changer |
| 03/31/1999 | EP0905731A2 Bellows and vacuum switch using the bellows |
| 03/31/1999 | EP0795219B1 Electric switching device |
| 03/31/1999 | CN2312514Y Air-break switch used for changing casings of electrically driven mechanism with no interruption of high tension power |
| 03/31/1999 | CN1212448A Circuit breaker compartment door |
| 03/25/1999 | WO1999014772A1 Transformer system provided with a decoupling system |
| 03/18/1999 | DE19740664A1 Transformer arrangement with isolating device |
| 03/17/1999 | CN1211335A Interlock arrangement for stationary mounted circuit breakers |
| 03/10/1999 | CN2310383Y Scissors type high-voltage insulation switch |
| 02/10/1999 | CN2307355Y Flexible rotating isolating switch |
| 02/04/1999 | DE19831240A1 Switching cabinet cover |
| 01/27/1999 | EP0893864A1 Drawer type circuit breaker |
| 01/27/1999 | EP0893811A2 A vacuum switch and a vacuum switchgear using the same |
| 01/27/1999 | CN1206215A Vacuum switch and vacuum switch apparatus using the same |
| 01/26/1999 | CA2076971C Sectionalizer with externally mounted electronic controller |
| 01/21/1999 | WO1999003180A1 A link switch |
| 01/20/1999 | CN1205529A Connector of terminal |
| 01/19/1999 | US5861595 Circuit interrupting apparatus and method for high current power lines |